Control valve for gaseous-fuel burners



Sept. 25, 1928.

.1,685,275 H. H. DODGE CONTROL vALvE Fon GAsEous FUEL BURNERS Las 9 uINVENTOR jarryffofzye A FS Arromvfr Patented Sept. 25, 19,28..

unirse. s'rATEs P CONTROL VALVE FOR GASEOUS-FUEL BURNERS.

Application filed February 25, 1926. SerialNo. 90,698.

My invention relates in general' to gaseous fuel burners and moreparticularly to valves tained therethrough sible only and the other forthe as,

for controlling the supply of'fuel to such burners. v

In my prior Patent, 1,529,015, patented March 10, 1925, I have discloseda valve for use with burners employing a plurality of gaseous fuelelements, so constructed that a constant proportional flowof fuel ismainduriiig manipulation of the valve and in all open positions thereof.It is the primary -object of mypresent invention to provide a valve of asomewhat similar character Atothat disclosed in the above mentionedpatent but one which is a decided improvement thereon.

In a device constructed in accordance with the teachings of my priorpatent, it is posto control and adjust the volume of the fuel, theproportions between the fuel ingredients remaining constant and l'un--changeable In the device of my present invention, I may adjust not onlythe volume of the fuel but also' the proportions between theingredientsthe'i'eof. 1

My invention will be more clearly undertood from the followingdescription'taken n connection with the accompanying draw'-.ins,inwhich: y y

igure 1 is a sectional view of a valve constructed in laccordance withmy invention; Figure 2 is a view looking from Athe left of Figure 1 andshowing the air-gage; Figure 3 is a view looking from the right ofFigure 1 and showing the gas gage;

Figure 4 is a sectional view on line 4-4 of Fi re 1, and

igure 5 is a sectional view on line 3 3 of Figure 1.

The valve consists of a brass or other-'metalv 1 which has a centrallongitudinal ore extending therethrough. Fittingwithin this bore are twocoaxial hollow cylindrical sleeves, the inner one consisting `of twoparts 2 and 2 and the outer one consisting of a single integral part 3.The two-part inner sleeve defines two chambers, one for the air, the twochambers being separated by a exible joint generally designated by thenumeral 4, which, while ,preventing intermixture of the gasesin thedifferent chambers, allows the two parts 2 and 2 to 'rotate independentof, and relative `to, one another. The sleeves project beyond each end'of the casting 1 and, the sleeve 3 terminates in externally threaded.portions -serted at-each end of patent, or it may be members 8, 8

slidable through packing sleeves 5 and 5inthe casting. yThreaded uponthe 'projecting ends .of the sleeves 3 are handv wheels 6 and The sleeve3 is capable of longitudinal movement only, so that, upon rotation ofthe lhand wheels, by reason of-the` hand wheels bearing against packingsleeves 5, 5, it may be moved back and forth as desired. This movementmay be secured by a key inthe casting engaging in a longitudinal groovein the sleeve.in a manner analogous to that secured in other ways suchas will readily occur to a mechanic.

'Secured upon the ends of the sleeve 3 are the flanges 7, 7, each ofwhich isp-rovided with an internally threaded bore for the reception ofscrew are provided with heads 9, 9 which fit'tightly within the sleeves2, 2 and 1n interlocking engagement therewith, as

'shown clearly in Figure 1, so that rotation of either screw 8 or 8causes rotation o f the respectiven'sleeve 2 or 2. This rotation is, ofcourse, limited as it is accompanied by a slight longitudinal movemento'f sleeves 2, 2 due to the threaded engagement of screws 8, 8 with theflanges 9, 9 pression in the flexible joint 4. It is sufficient however,for the purpose.

On the ends of the flanges 7, 7 are placed the gages'lO, 10 11, thegages belng held to the flanges by means of nuts 12, 12. The pointersare 'se. cured to the screws 8, 8

At suitably spaced points, the body of the casting 1 is provided withdiametrically aligned lateral passages or and extending through.connecting nipples 14, 14 formed on the Thenipple 14 is adapted forconnection with the air intake A of a burner (not shown) while the othernipple 14 is adapted for connection -with the gas intake vGr of-theburner. Similar 'nipples 15, 15 are formedy on the opposite side ofthecasting for connection `with air and gas outlets.

disclosed in my prior androtate therewith.

bores 13 and 13v outer face of the casting..

ATENT oai-Fica members 8, 8. The screw with a concomitant deprovidedwith pointers 11,

which align with both the bores 13, 13', and

the openings 16, 16. The bore13 and openings 16 and 17 are adaptedforthe passage of air therethrough, and the bore 13 and .open- .ings 16and 17"are adaptedfor the passage' lmay be'varied at will. The gages 10and 10 indicate the degree of rotation of the sleeves 2, 2 and thereforeserve as a convenient means for determining the quality of the fuel, itbeing understood that they are calibrated in any suitable manner.

While I have described a specific embodiment of my invention, I desireit to be understood that I do not limit myself to the precise details,as various modifications will readily occur to those skilled in thisart.

What I claim is 1. In a valve of the class described, a valve bodyprovided with a longitudinal bore and a plurality ofrtransver-se gaspassages extending through said body, a non-rotatable member within saidbore provided with openings adapted to align with gas passages, meansfor moving said member longitudinally, another member within-the boreand provided with openings adapted to align with the gas passages in thebody and the openings in the first member, said into two parts, meansfor preventing passage of gas bet-Ween the parts, and means forindependently rotating each part of said second member.

2. In a valve for gas burners, a valve body provided with a longitudinalbore, a plurality of transversev gas passages extending therethrough, asleeve within said bore provided with openings adapted to align with thegas passages, said sleeve being divided into two parts'separated by agas-tight fiexible joint and means for independently rotating eachl partof the sleeve.

3. In a valve for fuel burners, a valve body provided with a.longitudinal bore, a pluralit of transver-segas passages extendingthroug said body, a non-rotatable sleeve within said second member beingdivided bore provided with openings'ada'pted to align with said gaspassages, means for moving said sleeve longitudinally, another-sleevewithin said first sleeve and provided with openings adapted to alignwith the gas passages in the body and the openings in the first sleeve,said second sleeve being divided into two parts separated by a gas-tightflexible joint, and means for independently rotating each. part of thelast-mentioned sleeve.

In testimony whereof, I have signed by name to. this specification this23rd day of February, 1926. a.

` HARRY H. DODGE.

